Aluminum
City of Hemphill
Aluminum is a metal released from metal refineries and mining operations. Too much aluminum exposure can impair children's brain development.
6
Samples
0
Samples exceeding legal limit (MCL)
4
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2018 | 3,000.0 ppb | 1 | 1 | 3,000.0 ppb |
| 2019 | 4,300.0 ppb | 1 | 1 | 4,300.0 ppb |
| 2020 | 1,100.0 ppb | 1 | 1 | 1,100.0 ppb |
| 2021 | 580.0 ppb | 1 | 1 | 580.0 ppb |
| 2022 | 190.0 ppb | 1 | 1 | 190.0 ppb |
| 2023 | 840.0 ppb | 1 | 1 | 840.0 ppb |
ppb = parts per billion
State, National, and Health Guidelines for Drinking Water
EWG Health Guideline: 600 ppb
The EWG Health Guideline of 600 ppb for aluminum was defined by the California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk. This health guideline protects against harm to the brain and nervous system.
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2018-02-21 | Q1807619004 | 3,000.0 ppb |
| 2019-01-09 | Q1901414002 | 4,300.0 ppb |
| 2020-01-23 | Q2002804002 | 1,100.0 ppb |
| 2021-03-16 | Q2106924002 | 580.0 ppb |
| 2022-01-24 | Q2202260002 | 190.0 ppb |
| 2023-01-05 | Q2300645003 | 840.0 ppb |